What Is Virtual Router Redundancy Protocol (VRRP)?

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If you've ever had to deal with your internet going out on you, you know it's not a fun experience. You're left with all of your favorite shows just out of reach, and sometimes even worse: no one can get in touch with you! Luckily, there are ways to prevent this from happening again. One way is Virtual Router Redundancy Protocol (VRRP). VRRP is a network management protocol that enables a virtual router to act as the default gateway for that network. With VRRP, you get more reliability and performance from your host network by enabling data routing, forwarding and switching among a selective pool of virtual routers. VRRP was explicitly designed to solve the problem of static addresses, which proved inefficient when the route or path was unavailable. It's Time to Get Your Virtual on to understand it better. Virtual Router Redundancy Protocol (VRRP) is a protocol that increases reliability and provides a fail-over mechanism and support for static routing. VRRP aligns one of the routers as the master router, which manages to forward and route traffic toward all the given virtual IPs associated with these routers. VRRP aims to create a collection of physical routers to be advertised as a single master virtual router, allowing hosts to configure the virtual router as their go-to default gateway. It selects the virtual router from the group, aligns a virtual IP to that router, and, once the hosts have configured their default gateway, it enables packet forwarding. The routing/forwarding function is performed by the master router, which the VRRP also elects from the VRRP group. The VRRP monitors and manages the entire host communication, which is forwarded to its associated virtual router IP addresses and Address Resolution Protocol requests via multicast address 224.0.0.18

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